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0591696e FT |
1 | /** @file\r |
2 | UfsPciHcPei driver is used to provide platform-dependent info, mainly UFS host controller\r | |
3 | MMIO base, to upper layer UFS drivers.\r | |
4 | \r | |
d1102dba | 5 | Copyright (c) 2014 - 2018, Intel Corporation. All rights reserved.<BR>\r |
9d510e61 | 6 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
0591696e FT |
7 | \r |
8 | **/\r | |
9 | \r | |
10 | #include "UfsPciHcPei.h"\r | |
11 | \r | |
12 | EDKII_UFS_HOST_CONTROLLER_PPI mUfsHostControllerPpi = { GetUfsHcMmioBar };\r | |
13 | \r | |
1436aea4 | 14 | EFI_PEI_PPI_DESCRIPTOR mPpiList = {\r |
0591696e FT |
15 | (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r |
16 | &gEdkiiPeiUfsHostControllerPpiGuid,\r | |
17 | &mUfsHostControllerPpi\r | |
18 | };\r | |
19 | \r | |
20 | /**\r | |
21 | Get the MMIO base address of UFS host controller.\r | |
22 | \r | |
23 | @param[in] This The protocol instance pointer.\r | |
24 | @param[in] ControllerId The ID of the UFS host controller.\r | |
25 | @param[out] MmioBar Pointer to the UFS host controller MMIO base address.\r | |
26 | \r | |
27 | @retval EFI_SUCCESS The operation succeeds.\r | |
28 | @retval EFI_INVALID_PARAMETER The parameters are invalid.\r | |
29 | \r | |
30 | **/\r | |
31 | EFI_STATUS\r | |
32 | EFIAPI\r | |
33 | GetUfsHcMmioBar (\r | |
1436aea4 MK |
34 | IN EDKII_UFS_HOST_CONTROLLER_PPI *This,\r |
35 | IN UINT8 ControllerId,\r | |
36 | OUT UINTN *MmioBar\r | |
0591696e FT |
37 | )\r |
38 | {\r | |
39 | UFS_HC_PEI_PRIVATE_DATA *Private;\r | |
40 | \r | |
41 | if ((This == NULL) || (MmioBar == NULL)) {\r | |
42 | return EFI_INVALID_PARAMETER;\r | |
43 | }\r | |
44 | \r | |
45 | Private = UFS_HC_PEI_PRIVATE_DATA_FROM_THIS (This);\r | |
46 | \r | |
47 | if (ControllerId >= Private->TotalUfsHcs) {\r | |
48 | return EFI_INVALID_PARAMETER;\r | |
49 | }\r | |
d1102dba | 50 | \r |
0591696e FT |
51 | *MmioBar = (UINTN)Private->UfsHcPciAddr[ControllerId];\r |
52 | \r | |
53 | return EFI_SUCCESS;\r | |
54 | }\r | |
55 | \r | |
56 | /**\r | |
57 | The user code starts with this function.\r | |
d1102dba | 58 | \r |
0591696e FT |
59 | @param FileHandle Handle of the file being invoked.\r |
60 | @param PeiServices Describes the list of possible PEI Services.\r | |
61 | \r | |
62 | @retval EFI_SUCCESS The driver is successfully initialized.\r | |
63 | @retval Others Can't initialize the driver.\r | |
64 | \r | |
65 | **/\r | |
66 | EFI_STATUS\r | |
67 | EFIAPI\r | |
68 | InitializeUfsHcPeim (\r | |
1436aea4 MK |
69 | IN EFI_PEI_FILE_HANDLE FileHandle,\r |
70 | IN CONST EFI_PEI_SERVICES **PeiServices\r | |
0591696e FT |
71 | )\r |
72 | {\r | |
73 | EFI_BOOT_MODE BootMode;\r | |
74 | EFI_STATUS Status;\r | |
75 | UINT16 Bus;\r | |
76 | UINT16 Device;\r | |
77 | UINT16 Function;\r | |
78 | UINT32 Size;\r | |
a7b35aae IC |
79 | UINT64 MmioSize;\r |
80 | UINT32 BarAddr;\r | |
0591696e FT |
81 | UINT8 SubClass;\r |
82 | UINT8 BaseClass;\r | |
83 | UFS_HC_PEI_PRIVATE_DATA *Private;\r | |
84 | \r | |
85 | //\r | |
86 | // Shadow this PEIM to run from memory\r | |
87 | //\r | |
88 | if (!EFI_ERROR (PeiServicesRegisterForShadow (FileHandle))) {\r | |
89 | return EFI_SUCCESS;\r | |
90 | }\r | |
91 | \r | |
92 | Status = PeiServicesGetBootMode (&BootMode);\r | |
93 | ///\r | |
94 | /// We do not export this in S3 boot path, because it is only for recovery.\r | |
95 | ///\r | |
96 | if (BootMode == BOOT_ON_S3_RESUME) {\r | |
97 | return EFI_SUCCESS;\r | |
98 | }\r | |
99 | \r | |
1436aea4 | 100 | Private = (UFS_HC_PEI_PRIVATE_DATA *)AllocateZeroPool (sizeof (UFS_HC_PEI_PRIVATE_DATA));\r |
0591696e | 101 | if (Private == NULL) {\r |
87000d77 | 102 | DEBUG ((DEBUG_ERROR, "Failed to allocate memory for UFS_HC_PEI_PRIVATE_DATA! \n"));\r |
0591696e FT |
103 | return EFI_OUT_OF_RESOURCES;\r |
104 | }\r | |
105 | \r | |
106 | Private->Signature = UFS_HC_PEI_SIGNATURE;\r | |
107 | Private->UfsHostControllerPpi = mUfsHostControllerPpi;\r | |
108 | Private->PpiList = mPpiList;\r | |
109 | Private->PpiList.Ppi = &Private->UfsHostControllerPpi;\r | |
110 | \r | |
a7b35aae | 111 | BarAddr = PcdGet32 (PcdUfsPciHostControllerMmioBase);\r |
0591696e FT |
112 | for (Bus = 0; Bus < 256; Bus++) {\r |
113 | for (Device = 0; Device < 32; Device++) {\r | |
114 | for (Function = 0; Function < 8; Function++) {\r | |
115 | SubClass = PciRead8 (PCI_LIB_ADDRESS (Bus, Device, Function, 0x0A));\r | |
116 | BaseClass = PciRead8 (PCI_LIB_ADDRESS (Bus, Device, Function, 0x0B));\r | |
117 | \r | |
118 | if ((SubClass == 0x09) && (BaseClass == PCI_CLASS_MASS_STORAGE)) {\r | |
119 | //\r | |
120 | // Get the Ufs Pci host controller's MMIO region size.\r | |
121 | //\r | |
1436aea4 | 122 | PciAnd16 (PCI_LIB_ADDRESS (Bus, Device, Function, PCI_COMMAND_OFFSET), (UINT16) ~(EFI_PCI_COMMAND_BUS_MASTER | EFI_PCI_COMMAND_MEMORY_SPACE));\r |
0591696e FT |
123 | PciWrite32 (PCI_LIB_ADDRESS (Bus, Device, Function, PCI_BASE_ADDRESSREG_OFFSET), 0xFFFFFFFF);\r |
124 | Size = PciRead32 (PCI_LIB_ADDRESS (Bus, Device, Function, PCI_BASE_ADDRESSREG_OFFSET));\r | |
a7b35aae IC |
125 | \r |
126 | switch (Size & 0x07) {\r | |
127 | case 0x0:\r | |
128 | //\r | |
129 | // Memory space: anywhere in 32 bit address space\r | |
130 | //\r | |
131 | MmioSize = (~(Size & 0xFFFFFFF0)) + 1;\r | |
132 | break;\r | |
133 | case 0x4:\r | |
134 | //\r | |
135 | // Memory space: anywhere in 64 bit address space\r | |
136 | //\r | |
137 | MmioSize = Size & 0xFFFFFFF0;\r | |
1436aea4 MK |
138 | PciWrite32 (PCI_LIB_ADDRESS (Bus, Device, Function, PCI_BASE_ADDRESSREG_OFFSET + 4), 0xFFFFFFFF);\r |
139 | Size = PciRead32 (PCI_LIB_ADDRESS (Bus, Device, Function, PCI_BASE_ADDRESSREG_OFFSET + 4));\r | |
a7b35aae IC |
140 | \r |
141 | //\r | |
142 | // Fix the length to support some specific 64 bit BAR\r | |
143 | //\r | |
144 | Size |= ((UINT32)(-1) << HighBitSet32 (Size));\r | |
145 | \r | |
146 | //\r | |
147 | // Calculate the size of 64bit bar\r | |
148 | //\r | |
1436aea4 | 149 | MmioSize |= LShiftU64 ((UINT64)Size, 32);\r |
a7b35aae IC |
150 | MmioSize = (~(MmioSize)) + 1;\r |
151 | \r | |
152 | //\r | |
153 | // Clean the high 32bits of this 64bit BAR to 0 as we only allow a 32bit BAR.\r | |
154 | //\r | |
155 | PciWrite32 (PCI_LIB_ADDRESS (Bus, Device, Function, PCI_BASE_ADDRESSREG_OFFSET + 4), 0);\r | |
156 | break;\r | |
157 | default:\r | |
158 | //\r | |
159 | // Unknown BAR type\r | |
160 | //\r | |
161 | ASSERT (FALSE);\r | |
162 | continue;\r | |
1436aea4 MK |
163 | }\r |
164 | \r | |
0591696e FT |
165 | //\r |
166 | // Assign resource to the Ufs Pci host controller's MMIO BAR.\r | |
167 | // Enable the Ufs Pci host controller by setting BME and MSE bits of PCI_CMD register.\r | |
168 | //\r | |
a7b35aae | 169 | PciWrite32 (PCI_LIB_ADDRESS (Bus, Device, Function, PCI_BASE_ADDRESSREG_OFFSET), BarAddr);\r |
0591696e FT |
170 | PciOr16 (PCI_LIB_ADDRESS (Bus, Device, Function, PCI_COMMAND_OFFSET), (EFI_PCI_COMMAND_BUS_MASTER | EFI_PCI_COMMAND_MEMORY_SPACE));\r |
171 | //\r | |
172 | // Record the allocated Mmio base address.\r | |
173 | //\r | |
a7b35aae | 174 | Private->UfsHcPciAddr[Private->TotalUfsHcs] = BarAddr;\r |
0591696e | 175 | Private->TotalUfsHcs++;\r |
a7b35aae | 176 | BarAddr += (UINT32)MmioSize;\r |
0591696e FT |
177 | ASSERT (Private->TotalUfsHcs < MAX_UFS_HCS);\r |
178 | }\r | |
179 | }\r | |
180 | }\r | |
181 | }\r | |
182 | \r | |
183 | ///\r | |
184 | /// Install Ufs Host Controller PPI\r | |
185 | ///\r | |
186 | Status = PeiServicesInstallPpi (&Private->PpiList);\r | |
187 | \r | |
188 | ASSERT_EFI_ERROR (Status);\r | |
189 | return Status;\r | |
190 | }\r |